Is it possible to change the Room Calculation Point for all families in a project?

[Marcel_Rijsmus]

just guessing here but, if you are interested in getting the room an element is in check this:

Collect roomnumber and push roomnumber in each element inside the room, but somehow I have a missing link

Hello, I would fill the parameter Comments with the room number, in which the elements are. But when it collect the items, which in a room are, I would set the parameter, but only 3 items become the parameter in a alphabetic way . How can i read the room in which the element is and set the right parameter? [image] EMC.dyn

you can probably skip setting the Room Calculation Point